Pattern-binding machine.



H. I. IL I. H. SUTHERLAND.

PATTERN BINDING MACHINE.

APPLlcAloN FILED JUNE 23, 1914.

Patented Apr. 13, 1915.

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20Mb/75.79? Kaw/I? @Mj MEW. @ww/M THE NORRIS PETERS Cc., PHoTD-LITHO., WASHINGTON. D. C.

H. I. & 1. H. SUTHERLAND.

PATTERN BINDING MACHINE.

APPLIcAloN FILED JuNEzs, |914.

THE MORRIS PETERS CD., PHDTO-LITHO., WASHINGTON. D. C

H. J. & J. H. SUTHERLAND PATTERN BINDING MACHINE.

APPLICATION man JUNE 23, 1914.

Patented Apr. 13, 1915.

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BOLTON J. SUT-IERLAND, OF S'i-VAIVIPSCOTT, AND :THN H. SUTI-ERLAND, OF LYNN, MASSACHUSETTS.

PATTERN-BINDING MACHINE.

Specification of Letters Patent.

Patented Apr. 13, 1915.

Application filed .T une 23, 1914. Serial No. 846,785.

To @ZZ/2.071.071?. t may concern:

Be it known that we, HoLToN J. SUTHER- LAND and JOHN l-l. SUTHERLAND, citizens of the United States, residing at Swampscott, county of Essex, State of Massachusetts, and at Lynn, county of Essex, State of Massachusetts, respectively, have invented a certain nen7 and useful lmprovement in Fattern-Binding Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

Uur invention has for its object the production of an improved machine of the type employed in applying a metal binding along the edge of flat patterns of various kinds and is especially adapted for use in connection with boot and shoe patterns. rlhe patterns are usually of varying configuration, some times requiring short abrupt turns and sometimes khaving a comparatively long stretch with a little or no change in direc-- tion. ln going around the abrupt turn and in going over the portions which have short `stretches between the turns it is necessary to run the machine slow, but in going over the longer stretches it would be safe to run the machine faster, but in the machines heretofore constructed it has been impossible to change the speed of the mechanism for applying the binding except by changing the speed of rotation of the crank, as the machines of this character are usually hand power machines turned by a crank.

@ne of the objects of our invention is to so construct the machine that the operator may at will change quickly from a low speed to a high speed and back again to a low speed without changing the speed of rotation of the crank, so that where desired he may apply the binding rapidly and where slow speed is required he may instantly change to the slow speed.

A plurality of back stop or presser mechanisms are also required to adapt the machine to the varying changes in the contour of the pattern so as to bring one or another of the various back stop mechanisms into operative position according to conditions, but as heretofore constructed these various back stop mechanisms have been mounted in such manner that those which are out of operative position are subjected to wear as well as the one which is in operative position.

One of the objects of our invention is to so construct the machine that each back stop mechanism will be free from friction or other wear except when it is in operative position.

Furthermore it is our object to so arrange and construct the machine that the different devices essential to the application of the binding are conveniently accessible to the operator.

Other improved features in our device will be apparent from the following description of our invention, all the novel features of which will be clearly understood from said description when taken in connection with the accompanying drawings and will be clearly pointed out and defined in the claims at the close of the specification.

In the drawings, Figure 1 is a side elevation partly in section of a machine embodying our invention. Fig. 2 is a front elevation of the same. Fig. 3 is a sectional View enlarged of the clamping mechanism. Fig. l is a front elevation of a turret. Fig. 5 is a section on line 5 5 of Fig. l. Fig. 6 is a detail of the cutting mechanism. Fig. 7 is a plan partly in section on line 7 7 of Fig. l showing the work support, forming tools, and forming block, the latter being swung out of operative position. Fig. 8 is a section on line 8 8 of Fig. 7. Fig. 9 is a section on line 9 9 of Fig. 7 showing one form of binding tool and Fig. 10 is a section on line 9 9 of Fig. 7 showing a different form of binding tool from that shown in Fig. 9. Fig. l1 is a plan view of a shoe pattern showing a binding partially applied thereto.

Having reference tothe drawings and particularly to Fig. l there is shown a machine having a base A and an upwardly eX- tending member B supporting a horizontal arm C. The base A'is adapted to rest on a table or work bench, and the members B and C are hollow as shown in order to incase the operating mechanism to be de` scribed. The horizontal arm C is vertically adjustable with relation to the base A, being provided on its rear end with a cylindrical iember l which makes a slidable fit with the correspondingly shaped interior of the member B. Set screws 2 serve to lock the members together in any position desired.

The horizontal arm C which acts as a support for the clamping mechanism is provided with a horizontal shaft 11 rotatably mounted in bearings 12 at either end of the arm. VThe horizontal shaft 11 protrudes slightly from the arm as shown, and is provided at one end with a crank 13 by which it maybe rotated in a manner to be described. The other end of the shaft 11 is provided with a clamping wheel 14e which coperates with a clamping wheel 15 secured on the outer end of the sectional shaft 16 journaled with slots 2st adapted to be engaged by a key securedto thev clutch mechanism to be described. n o

A washer 10 located at the juncture of the gears 20 and 21 surroundsl the sleeve 30.

The-key 25 which isY formed'of spring metal is provided with a thin neck portion 7 which enablesthe key to be iiexedand ride over the washer when it is moved longitudinally of the shaft tor shift its engagement from one gear to the other. Coperating with these gears are a pair lof pinions 26 and 27 both of which are rigidlymounted en the shaft 16 by any suitable means. 'The means shown is to provide each gear with a hub 28V which is securedto the shaft by a set-screw 29.

The crank 13 is secured to the sleeve 30 by the set-screw 31, said sleeve 30 loosely fittingv about theY shaft 11 and having a slot 32 cut longitudinally thereof. The crank and sleeve are held to the shaft 11 by means of a cap 33Y and screwr34.

A' detachable cover H having a hole therein through which the shaft 11 and surrounding parts extend renders the gears accessible. The cover is retained in place by aV slot 3 in the arm C, with which the lower edge of the cover engages, and by a screw a at its upper end.

Mechanismis provided by which the crank 13 is connected with the shafts 11 andv 16 so that they may be revolved by the crank, the mechanism being so constructed that the speed of the shafts relatively to that of the crank may be readily varied. This is accomplished by means of a clutch lever 35 pivotedi intermediate its ends to the crank at 36. The upper end of the clutch lever 35 is pivotally secured to a key supporting member 37 which carries a key or feather 25. The other end of the clutch lever 35 preferably extends slightlybelow the crank for convenience and is provided with a slot and pivot connection with a horizontal clutch actuating member 38 slidably mounted in the handle 39 of the crank. The handle 39 is provided with a pocket 40 in which a button L11, secured to the end of the member 38, is adapted to be retained. By moving the clutch lever 35 on the pivot 36 the key 25 may be thrown into engagement with the slot 24 in either of the gears 2O and 21. The gears 20 and 27 are of equal size, and both being rigidly mounted on their respective shafts, when the crank is connected with them the shafts are each caused to rotate at the same speed as the crank. The gear 21 is twice the circumference of the pinion 26. When the key is shifted to the slot 24: in the gear 21 the gear 21 is positively rotated by the crank, and as the gear 21 is loose on the sleeve 30 and is double the circumference of the pinion 26, and the sleeve 30 is loose on the shaft, the shafts 11 and 16 will have two revolutions for each rotation of the crank. By this construction it will be seen that the operator may readily change the speed of the clamping wheels. 1t is obvious that the ratio of the gears may be varied as desired, to secure whatever variation in speed is desired. We regard this as important for some parts of the pattern have a relatively long stretch without having to turn a corner or make a sharp turn. ln such cases it is desirable to be able to speed up and it is important that the operator should be able to change the speed quickly.

rlhe clamping wheels, as stated heretofore, are of well known type, each having a clamping surface 114 with a liange 15 which clamps Vthe lips or legs of the binding well into the pattern material to hold the binding in place. The clamping wheels are held fast on reduced ends of the shafts as for instance by nuts L16 so that they may be removed when desired. The manner of clamping the binding to the pattern is the same as that heretofore practiced, one edge of the pattern D being inserted between the clamping wheels with thc binding E started on it. The base of the channel shaped bind* ing, that is the outer face of the portion which comes against the edge of the pattern, bears against the rim of a presser wheel or back stop 47, the legs of the binding being pressed against the sides of the pattern and clamped securely in place by the clamping wheels.

It will be seen that it is essential that the rim ofthe wheel 417 should bc located closely adjacent the inner surfaces of the clamping wheels in order that the inner face of the base of the binding shall be pressed closely against the edge of the pattern. Back stop members of different shapes and sizes are required accordingly for varying changes in the contour of the pattern. For instance.

latentes where there is a narrow, deep notch to be edged, as shown at F in Fig. 1l, a back stop like that shown at 47 is not suitable, but it is necessary to use a back stop suitably formed to enter the slot, and for such purpose a thin member, such for instance as a blade 9 shown in Fig. 4, is employed.

For other varying forms of configuration varying sizes of bach stop members are required all as clearly shown in Fig. 4.k Inasmuch as different shapes and sizes of back stop members are necessary, it has been customary to provide a turret which is rotatably mounted about one of the shafts so that it may be adjusted to bring any one of the back stop members adjacent the clamping mechanism. Whatever the size or shape of the back stop members, they should be so mounted on the turret that when the turret is turned to bring any particular back stop member' into operation the latter member should be so positioned that its periphery or operative face is adjacent the clamping wheel so as to engage the base of the binding strip. rs heretofore constructed, the turrets have been so mounted that the several back stops, even those which are not in operative position for the binding strip, are all adjacent to the path of movement of the face of the lower clamping wheel with the result, that during the rotation of the said clamping Wheel its face will grind on all of the back stops and thereby cause unnecessary wear.

@ne of the objects of our invention is to provide a turret so constructed that none of the back stops, except the one in operative position, will be in contact with either clamping wheel.

Fig. 3 of the drawings shows our novel construction. To accomplish the above purpose, the bearing 12 at the front end of the horizontal arm C is provided with a pocket or recess in which is fitted a bushing 48 having a hole longitudinally therethrough and parallel to the shaft and in which the latter is adapted to loosely fit. The outer periphery of the bushing 4S is angular in longitudinal section, that part 49 of the periphery received within the poclret being parallel with the shaft, while the portion 50 of the periphery, which projects beyond the end of the pocket, slantsl obliquely downward. The inner periphery or shaft bearing surface of the bushing, therefore, is straight while the outer periphery is slightly angular as stated. rlhe turret is loosely mounted on the outer portion 50 of the bushing so that it may be rotated thereon.

The turret 57 has an outer surface which is slightly tapering in a direction away from the clamping wheel, and is so arranged that when located on the bushing 48 the upper surface 5l is parallel with the shaft, the

lower surface 5 is inclined to the shaft, and

the outer end surface 52 and the inner end surface 53 are at an angle to the inner surface 54 of the lower clamping wheel. The turret is provided with holes 55 adapted to receive studs 65 of the back stops and thereby retain them in position. The back stops being of different sizes, the holes in the turret 57 are so located that the periphery or operative face 58 of each back stop is in contact with the inner surfaces 54 of the clamping wheels when in operative position. In order to retain the uppermost back stop in contact with the clamping wheels we provide athread 59 on the busl'iing 4S, which is adapted to receive a correspondingly threaded loch nut 60 held in position by a set screw 6l. lt will be seen from the foregoing that the only back stop in contact with the lower clamping wheel is that .which is uppermost and in the position for use. The turret is retained in the proper position by a suitable latch (52 engaging a series of holes G3 in the turret so arranged that each of the members may be locked in operative position. The latch is yieldingly mounted on a spring in a support 64 secured to the frame by suitable screws, the latch being provided with thumb nut 65.

1While we have described in detail the form of turret mechanism preferred, we do not wish to be limited to this particular type, our object being to so arrange the parts, that the operative surface or rim of the presser members shall be contiguous and parallel with the inner surfaces 54 of the clamping wheels while in operative position, and shall be out of contact with the inner surface 54 of the lower clamping wheel when not in use. lt is not esesntial therefore that the upper surface 5l of the turret should be parallel with the shaft but it is sufficient if the presser members are so mounted that the operative surface of each is parallel with the surface 54 of the clamping wheel when in operative position.

The lower clamping wheel 14 is mounted in stationary bearings as described while the upper clamping wheel l5 is mounted in vertically movable bearings so that the upper clamping wheel may be raised with relation to the lower clamping wheel in order to permit the insertion and removal of the work.

The upper wheel is mounted on the front other against a suitable spring tension adjusting nut 77 threaded on the bushing 72. The upper end of the rod 73 protrudes through the bushing, and is provided with set'nuts 78 by which its downward movement may be limited.

The shaft 16 is so formed that its front portion 67 is movable up and down relatively to the rear portion yet at all times connected therewith. This is accomplished by means of a joint comprising a member 7 9 secured tothe front end of theV rear portion of theshaft 16, a member 80 carried by the front portion 67 of said shaft, and a key member 81. The members 79 and 80 each have in their adjacent ends slots 82 disposed aty right anglesto each other, which are adapted to receive correspondingly disposed feathers 83 Ywith which the key member 81 is provided.: By this means it will be seen that the front portion 67 of the shaft may be moved up andV down relatively to the rear portion and still be rotatably connected therewith, and yet is at all times parallel to the shaft 11 and to the rear portion of the shaft 16.

The clamping wheel 15 receives its upward movement by means of a suitable treadle secured to the rod 811 pivoted at its upper end to the rock lever 85, which is in turn pivoted to the frame at 86, and is provided with a bifurcated front end 87 which embraces a stud 88 rigidly secured at each end in the head 69. By this means the operator may readily lift the clamping wheel 15 against the spring 76 to insert or remove the binding.

' We rregard this construction 'as an iinportant feature of our invention for the reason that a direct yielding pressure is obtained which may be adjusted as desired, the krelative position of the clamping wheels being determined by the set-nuts 78. By this construction therefore the clamping wheels are at all times retained apart so that when the work is removed from them the flanges 45 of the wheels do not come in contact with each other which prevents pounding by the clamping wheel 15 on the wheel 16 by a sudden drop when the work is removed. Furthermore, in the machines as heretofore constructed, so far as known to us, Vthe clamping wheel shafts have been movable relatively to each otherthroughout their entire lengths which has necessitated a very loose gear construction. It will be evident that where such a construction is employed, there is necessarily a relatively large amount of play between the gears so that the clamping wheels do not at once respond tothe movement of the crank. This is a loose form of construction and is apt to result in poor work.

As is well known to those skilled in the art parts of the binding must be applied very carefully and a relatively large number of operations are required in order to properly apply it. For example, where a slot as shown at F in Fig. 11 is edged with the binding, the binding must be shaped before it is applied. To do this it is necessary to remove it from the clamping wheels and submit it to a shaping operation which is done by hand. Heretofore these shaping operations have been done on a separate work bench or else where which is more or less inconvenient for the operator.

The device embodying our invention is provided with the tools essential for the various operations, and is so constructed that they are close to the clamping mechanism so that the necessary movements of the workman are reduced to a minimum.

The present machine is adapted to save much time by being provided with the various tools essential to the different operations. The'forming block 89 with the various curves is secured on the base A so as to be close at hand and at the same time is movable so that the other tools necessary are readily available for use in the most convenient position. rlhe forming block 89 is secured to a swinging arm 90 pivoted at 91 to the base, which permits it to be swung to or from the base or work support as de sired.

7e provide the work support with a hole 92 extending vertically therethrough, which is adapted to be engaged by a spring mounted latch member 93. rlhis member is loosely mounted in a suitable thimble 9tsupported on a flat portion 95 of the arm 90.

rlhe latch member extends through the thimble and flat portion of the arm, normally projecting slightly below the bottom of the arm, and is provided on its upper end with a button 97. It is held yieldingly in its normal position by a spring 98. In the lower portion of the hole 92 is a latch releasing stud 99 which loosely [its in said hole and rests on the inner end of a member 1.00 pivoted to the base A at 101. A downward pressure on the member 100 raises the stud 99 and removes the latch from the hole 92, thereby permitting the forming block 89 to be swung away from the work support.

A cam 102, shown in Figs. 2 and 7, secured to the side of the work support, serves to raise the bottom of the latch to the upper surface of the support when the arm 90 is moved into operative position.

Automatic means are employed to swing the forming block 89 away from the support when the latch is released, said means consisting as shown of a flat spring 103 secured to the side of the base A, and arfili insegne ranged to be engaged by the depending end of a horizontal arm 10-1 secured to the swinging member 90. A quick push of the forming block 89 supplies sufficient momentum to compress the spring and swing the forming block into position on the support where it is retained by the latch member 93. To swing the forming block out of the way it is simply necessary to press the lever 100 and lift the latch member 93.

rlhe portion of the work support occupied by the forming block 89 and supporting arm 90 when in operative position is adapted to receive various other kinds of tools essential to the many operations which may be necessary to apply the binding to the pattern edge. Thus the work support, which is the most convenient place for the operator, may be utilized to perform the operations necessary by merely releasing the latch which allows the work support to swing out of the way. Holes 105 in the work support are adapted for the reception of various tools, the tools being adapted to fit loosely in the holes which hold them in the required position.

Some of the tools employed, such for eX- ample as are shown at 10G and 107, are very difficult to get hold of to remove them, and in order to save the time of the operator we have provided means by which they may be readily removed. The tool 106 in the end of the work support is adapted to be rcmoved from the pocket in which it rests by means of a 'll-member 108 which rests in a small pocket beneath the tools and projects below the bottom of the work support. rlhe tools shown at 107, however, are not so readily accessible. The pockets in which these tools rest are provided with T-members 109 which rest in small pockets 110, and project beneath the lower surface of the work support in the same manner as the l`n1ember 108.

A. rock lever 112 having a cross pin 113 is pivotally mounted in bearings 11a secured to the lower side of the base A. One end of the cross pin 118 extends through the side of the base and is provided with a suitable torsion member 115 by which the cross pin may be turned. rThe rock lever is so arranged that its. ends engage the 'in-members 109 so that the operator may readily raise a tool above the work support, in which position it may be easily removed. Figs. 9 and 10 of the drawings show the latch receiving hole 92 employed to hold other kinds of tools.

We also provide means for severing the binding which consists of knife blades so arranged that they may be moved relatively to each other by means of the clamping wheel moving mechanism. The knives are clearly7 shown in Fig. 2 and comprise a blade 116, secured to one of the ways of the frame, which is adapted to coperate with a blade 117 secured to the movable head 69. By this construction it will be noted that the knives are brought positively together by means of the treadle which actuates the head.

lWe regard the machine herein described as an important advance in the art, for binding may thereby be applied much more rapidly than by machines heretofore constructed, and at the same time close and accurate work may be performed.

`What we claim is:

1. 'lhe improved pattern binding machine comprising coperating clamping wheels, rotatable shafts parallel with each other on which said clamping wheels are mounted, one portion of one of said shafts being fixed with relation to the other shaft, and the other portion being laterally movable relan tively thereto but being always parallel therewith, means for rotating said shafts, a movable coupling member which connects the two members of the two-part shaft, the axis of said coupling member being in all of its positions parallel with both sections of said two-part shaft, and means for giving movement to said movable portion.

2. ln a pattern binding machine, a pair of rotatable shafts, one of which is a sectional shaft having a portion fiXedly mounted relative to said other shaft and a portion movably mounted relatively thereto, the adjacent ends of the portions of said sectional shaft being mounted closely together, and a key member connecting said closely adjacent ends to permit a transverse relative move ment of the same.

3. ln a pattern binding machine, two clamping wheel shafts one of which is a sectional shaft, a portion of said sectional shaft being fixedly mounted relatively to said other shaft and a portion being movably mounted relatively thereto, the adjacent ends of the portions of said sectional shaft having oppositely disposed slots therein, and a key member having correspondingly oppositely disposed feathers to engage said slots.

a. The improved pattern binding machine, comprising cooperating clamping wheels, rotatable shafts mounted parallel with each other on which said clamping wheels are mounted, one of said shafts being a sectional shaft, one portion of which is movable laterally with relation to both said other sections and said other shaft and always parallel therewith to vary the distance between said movable section and said other shaft, a laterally movable coupling member which connects the twomembers of the said twopart shaft, said coupling being in all of its movements parallel with both sections of said two-part shaft.

5. A pattern binding machine comprising a pair of rotatable shafts, a joint for one of said shafts which permits a portion of it to be moved transversely with relation to its other portion and with relation to the other of saidshafts and at all times parallel therewith the movement of the joint and of said movable section being always in a path at lright angles with the axis of both sections and of the joint, .and clamping wheels on said movable portion and-on said other shaft.

6. In a patternbinding machine, a pair of rotatable shafts parallel with each other, one kof said shafts beingsplit transversely thereof, one member of said sectional shaft being figgedwith relation totheother shaft, and the other 4Vmember being .laterally movable with -relation tosaidothershaft but being maintained at all times paralleltherewith, a couplingmalringa connection between the movableandfixedportions of saidseetional shaft which Ipermits said xmovement 0f one member .relation vto theV other, the l.said courlissfbeinamevable and/.GOPGI-'atns Clamping `wheels mounted rrespectively on said movable portion 44of the sectional shaft and on :said other shaft.

, 71. `InLa.pattern,binding machine, a pair of rotatable shaftsparallel witheach other, one of said shafts .being split-transversely thereof, one ,member of said -sectional shaft being fixed with relationtoftheother shaft and the lother .member being movable with relation to .said other shaft, butat alltimes parallel therewitlngbearings (for said shafts, the bearrvinigfor the movable portion of said sectional .shaft being.rnovable toward and away from the bearingongtheadjacent.end of said other shaft, -a joint connection between the movable and fixed portions of said fixed shaft which permits the :movement of one member vwithrelation. to the other, said joint being movablavtheZ-axis of the said joint being at all ,times maintained .parallel with the axes of Iboth of said shaft sections, and coperatingclamping wheels mounted respectively on lsaid movable.portion of the sectional shaft onsaid other shaft.

tIn a .pattern binding machine two clamping wheel shafts one of vwhich is a shaft :dividedtransversely, being composed of two sections both .of-which are parallel lvvithsaid other` shaft,ioneportion of said sectional shaft lbeing laterally movable with relation to the other portion, bothl portions ofsaidsection-al'shafthaving on their adj acentends head portions of .greater diameter `than,theshaftsections, in combination with a v.coupling which connects `said two head por-tions, said coupling being movable at right angles .with relation-to the fixed portion of said -sectional :shaft and being at all times parallelwithboth of said shafts.

A 9, {Ina-pattern binding machine, a pair of rotatable shafts, cooperating clamping wheels ,and gears mounted on said shafts, means 'for .rotating said `shafts and gears and mechanism WhQrQby :the .speed of the gears relatively to said rotating mechanism may be varied.

10. In a pattern binding machine, a pair of clamping wheel shafts, a pair of gears fixed on one of said shafts, a fixed gear and a loose gear on the other of said shafts, a rotatable driving member, and a clutch mechanism adapted to connect said driving member at will with either the fixed gear or the loosely mounted gear on said last mentioned shaft.

11. In a pattern binding machine, the combination of a pair of shafts, a pair of fixed gears on one of said shafts, a fixed and loose gear on the other of said shafts, crank loosely mounted about one of the shafts, and a clutch mechanism secured thereto adapted to engage either said fixed gear or loose gear on said last mentioned shaft.

12. In a pattern binding machine, two shafts which carry cooperating clamping wheels, a pair of gears of different diameters fast on one of said shafts, a gear fast on the other of said shafts which engages with one of the gears on said first shaft, a sleeve loose on said second shaft, a gear loose on said sleeve and engaging the other gear of said first shaft, means for rotating said sleeve and a clutch by which said sleeve may be connected at will either with the gear which'is fast on the second shaft or the gear which is loose on the said sleeve.

, 13. In a pattern binding machine, the improved clamping mechanism comprising a pair of cooperating clamping wheels, a turret rotatably mountedpadjaeent said wheels, a plurality of baclr stops of varying forms or sizes carried by said turret, said turret being rotatable to bring at will any one of said back stops desired at a time into contact with the clamping wheels, the mounting of said turret having such relation to the mounting of the clamping wheels that during therotation of the clamping wheels only 4one of said back stops at a time will be in yposition for engagement with either of the clamping wheels.

14. In a pattern binding machine, the improved clamping mechanism comprising a pairof cooperating clamping wheels, a rotatable turret mounted with its axis at an angle to that of said clamping wheels, and a plurality of back stop members carried by said turret, each of said back stop members being mounted in such manner that its operating face will be parallel with the end of said clamping wheels when in operative position and -the operative faces of all the back stop members which are out of operative position will be out of contact with the clamping wheel.

15. In a pattern binding machine, the im- .proved clamping 4mechanism comprising a to said shaft, a turret having a tapering outer surface mounted on said inclined peripheral portion, and back stop members mounted about said turret and adapted to be adjacent said clamping wheel at one point in its rotation.

16. ln a pattern binding machine, the improved clamping mechanism comprising a pair of cooperating clamping wheels, shafts on which said wheels are mounted, a bushing surrounding one of said shafts adjacent the clamping wheel, a portion of the periphery of said bushing being inclined at an angle to said shaft, a rotatable turret having a tapering outer surface mounted on said inclined peripheral portion, and back stop members mounted about said turret, each of said back stop members being adjacent said clamping wheel at one point in the rotation of said turret, and means for locking the turret in position to retain any one of the back stop members desired in operative position.

17. ln a pattern binding machine, the combination of a pair of clamping wheels rotatably mounted in members one of which is movable with relation to the other, a pair of cooperating blades for severing the pattern binding, one of said blades being secured to one of said members and the other of said blades being secured to the other of said members, and means by which one of said members may be moved with relation to the other.

18. ln a pattern binding machine, the combination with a pair of cooperating clamping Wheels of a fixed member in which one of said clamping wheels is mounted, a movablehead in which the other of said clamping wheels is mounted, cooperating pattern binding severing` blades, one of said blades being secured. to said fixed member, the other of said blades being secured to said movable head, and means for positively moving said head to bring said blades together.

19. ln a pattern binding machine, the combination with a crank having a handle thereon, of clutch operating mechanism comprising a clutch lever pivoted intermediate its ends to said crank, a key connected with-said lever, and a clutch lever actuating member mounted in said handle and connected with said clutch lever.

20. ln a pattern binding machine, the combination with a crank having a handle thereon, of clutch operating mechanism comprising a clutch lever pivoted intermediate its ends to said crank, a key connected with said lever, a clutch lever actuating member mounted in said handle and connected with said lever, said handle having a pocket therein and a button secured to the end, of said clutch lever actuating member in said pocket.

21. ln a pattern binding machine having two parallel shafts, cooperating clamping wheels mounted on said shafts, a column having a projecting arm provided with bearings in which said shafts are journaled, a work supporting base connected with said column, a swinging arm pivotally connected with said base, a graduated forming block mounted on said swinging arm, means for locking said swinging arm on the base under tension, and tension mechanism which when said locking mechanism is released will automatically swing the arm and graduated forming block into another position.

9,2. A pattern binding machine having two parallel shafts, cooperating clamping wheels mounted on said shafts, a column having a projecting arm provided with bearings in which said shafts are journaled, a work supporting base connected with said column, said base being formed with toolholding sockets, rock levers located beneath said tool-holding sockets, ejecting pins which extend up into said sockets and engage the underside of the work tools and which are actuated by said levers to eject the tools from the sockets.

23. A pattern binding machine having clamping wheel shafts, cooperating clamping wheels mounted on said shaft, a column having a projecting arm provided with bearings in which said shafts are journaled, a work supporting base connected with said column, said base being formed with a pair of tool-holding sockets, ejecting pins which extend up into said sockets and engage the underside of the work tools, a rock lever mounted in said base below said sockets with its ends engaging said ejecting pins, a cross pin journaled in the bearings in the base upon which said lever is mounted, one end of said cross pin projecting beyond the side of said base and, having a handle thereon by which said rock lever may be actuated to eject the tools from the sockets.

24,-. A pattern binding machine having two parallel shafts, cooperating clamping wheels mounted on said shafts, a column having a projecting arm provided with bearings in which said shafts are journaled, a work supporting base connected with said column, a swinging arm pivotally connected with said base, a graduated forming block mounted on said swinging arm, means for locking said swinging arm in a fixed position on the base under tension, tension mechanism which when said locking mechanism is released will automatically swing the arm and graduated forming block into In testimony Wheieoi| we aix our signaanother position, said base being formed tures, 1n presence of two Witnesses.

With tool-holding sockets, rock levers T w -T located beneath. said tool-holding sockets, ejector pins which extend up into said j l J l j L sockets and engage the under Side of said /Vitnesses:

Work-t0o1s and which are actuated by said GRACE G. CUNNINGHAM,

levers to eject the tools from the Sockets. GRACE L. HUTCHINS.

Copies of this patent may be obtained foi' 'five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

